Render text at certain moments with GnlComposition

[Rossana Guerra]

Hello, I have a Gnlcomposition with 2 gnlfilesources (videofiles), I need
to render text in a customizable manner. For instance, at certain time
file1 needs text over it and file2 doesn't and viceversa or even both could
need the text rendered over them.
I could put a text in the common queue, so it always appears and it isn't
the needed behavior.

I appreciate any clue, thanks

Rossana


The pipeline


GnlComposition

  gnlfilesource1

--------------------gnlOperarion--------queue-----sink     // I put the
textoverlay between the queue and the sink
  gnlfilesource2


gnlOperation   //for crossfade purposes

     alpha1
               ----------videomixer--------ffmpegcolor
     alpha2
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